45172999919 has 2 divisors, whose sum is σ = 45172999920. Its totient is φ = 45172999918.

The previous prime is 45172999903. The next prime is 45172999931. The reversal of 45172999919 is 91999927154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45172999919 - 2⁴ = 45172999903 is a prime.

It is a super-2 number, since 2×45172999919² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45172999019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22586499959 + 22586499960.

It is an arithmetic number, because the mean of its divisors is an integer number (22586499960).

Almost surely, 2^45172999919 is an apocalyptic number.

45172999919 is a deficient number, since it is larger than the sum of its proper divisors (1).

45172999919 is an equidigital number, since it uses as much as digits as its factorization.

45172999919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16533720, while the sum is 65.

The spelling of 45172999919 in words is "forty-five billion, one hundred seventy-two million, nine hundred ninety-nine thousand, nine hundred nineteen".